CN201787136U - Gas solenoid valve - Google Patents
Gas solenoid valve Download PDFInfo
- Publication number
- CN201787136U CN201787136U CN2010205549582U CN201020554958U CN201787136U CN 201787136 U CN201787136 U CN 201787136U CN 2010205549582 U CN2010205549582 U CN 2010205549582U CN 201020554958 U CN201020554958 U CN 201020554958U CN 201787136 U CN201787136 U CN 201787136U
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- valve
- indirect
- main
- valve plug
- draught excluder
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Abstract
The utility model relates to a gas solenoid valve, which can be installed in a gas channel. A main cut-off valve and an indirect cut-off valve on the downstream of the main cut-off valve are arranged on the upper stream of a valve body, wherein the indirect cut-off valve comprises an indirect valve plug, a magnetic connecting rod for connecting the indirect valve plug with a main valve plug, and a spring element. When the main cut-off valve is powered on, the main valve stem generates magnetic force and actuates the magnetic connecting rod and the indirect valve plug. When the main cut-off valve is powered off but not turned off due to the occurrence of a failure, the indirect valve plug can be closed by the thrust force of the spring element due to the disappearing of magnetic force between the main valve stem and the magnetic connecting rod, so that the gas channel can be closed and the leakage of gas can be avoided even at failure of one valve.
Description
Technical field
The utility model relates to the relevant solenoid valve of a kind of and gas flow control, is meant a kind of gas electromagnetic valve that prevents that combustion gas from leaking especially.
Background technique
As shown in Figure 1, existing gas flow control valve is that a main draught excluder 91 is set respectively on a valve body 90 separately, one pressure reduction Proportional valve 92, an one indirect draught excluder 93 and an indirect proportional control valve 94, wherein: main draught excluder 91, indirect draught excluder 93, and proportional control valve 94 all is the solenoid valve that is provided with different electromagnetic coils and iron core respectively indirectly, and by the attraction of the electromagnetic coil after energising electromagnet generation unlatching start, different is main draught excluder 91, draught excluder 93 all is an energising back Open valve indirectly, proportional control valve 94 is opposite only indirectly, it is to rely on the size of current of energising that valve envelope slowly is little, during outage then this valve be opening state on the contrary.
Be provided with a sprue in the aforementioned valve body 90, this main draught excluder 91 is arranged at the upstream end of sprue; This pressure reduction Proportional valve 92 is arranged at the downstream part of sprue, at least include a back pressure chamber 95, and be located at the diaphragm 96 and one and the pressure differential valve 97 of diaphragm 96 interlocks of back pressure chamber 95 tops, and the high and low position that relies on pressure differential valve 97 to open and close reaches the purpose of adjusting gas flow.
After main draught excluder 91, indirect draught excluder 93 are via the coil electricity start, combustion gas enters sprue by main draught excluder 91, and by pressure reduction Proportional valve 92 and indirectly the magnitude of current adjustment control that sets of proportional control valve 94 enter the gas quantity of back pressure chamber 95, then the diaphragm in the back pressure chamber 95 96 can rise or descend along with the increase and decrease of gas quantity, also can increase or descend with the pressure differential valve 97 of diaphragm 96 interlocks, and then reach the stable purpose of gas flow maintenance.
Prior art no doubt has the effect that twice prevent the function of valve sealing and can regulate different gas flows, but, need seal main draught excluder and indirect draught excluder respectively because of repeating to be provided with the twice draught excluder, when integral body is used, cause the load of electric current excessive and repeat to be provided with easily, increase the complexity of structure and the shortcoming of cost expenditure.
In view of this, the utility model designer creates a kind of gas electromagnetic valve, this gas electromagnetic valve is set up the indirect draught excluder of an interlock magnetic on sprue, can not repeat to be provided with under the situation of a separately indirect draught excluder, also can prevent when main draught excluder or the arbitrary valve generation of indirect draught excluder fault, can both close the sprue combustion gas separately, prevent that the situation that combustion gas leaks from taking place.
Summary of the invention
Main purpose of the present utility model is to provide a kind of gas electromagnetic valve, when main draught excluder fails to close because of breaking down, the indirect draught excluder of magnetic interlock loses the magnetic attraction with main valve stem, multiple thrust via spring element, make indirect valve plug recover normally off, with the danger that prevents that combustion gas from leaking.
For achieving the above object, the technical solution adopted in the utility model is:
A kind of gas electromagnetic valve, it is arranged in the combustion gas runner, is at a valve body upstream extremity one main draught excluder to be set, and an indirect draught excluder is set below this main draught excluder, it is characterized in that:
The main valve plug, one that described main draught excluder comprises a sealing sprue import is arranged on this main valve plug is opened and to the magnetic element of the excitatory generation magnetic attraction of described main valve stem;
Described indirect draught excluder comprises that the indirect valve plug, of adjustment runner that a sealing is positioned at the downstream and grate flow channel is subjected to aforementioned main valve stem magnetic attraction interlock and the magnetic connecting rod and of opening indirect valve plug is resisted against described indirect valve plug and makes this indirect valve plug make the spring element of time spent maintenance closed state in no external force.
Wherein: described magnetic connecting rod top is provided with mobile space with described main valve plug joint, and described magnetic connecting rod below is provided with the buffer gap with described indirect valve plug joint.
Wherein: described valve body downstream part is provided with a pressure reduction Proportional valve, and this pressure reduction Proportional valve includes the diaphragm and one and the pressure differential valve of this diaphragm interlock that a back pressure chamber, that is communicated with aforementioned adjustment runner is arranged at this back pressure chamber top at least.
Wherein: the valve body downstream part is provided with an indirect proportional control valve, and this indirect proportional control valve comprises the indirect Small diaphragm-piece and a guide rod of a movable coil, plural groups magnet, a plurality of and staggered iron core of magnet, the aforementioned grate flow channel of a sealing.
Aforementioned indirect proportional control valve comprises that one leads to the combustion gas ratio backflow road of sprue opening, combustion gas flows to indirect proportional control valve via aforementioned grate flow channel, rely on the size of current of this indirect proportional control valve to regulate the discharge capacity of leading to combustion gas ratio backflow road again, when discharge capacity after a little while, then the combustion gas meeting enters with bigger flow and adjusts the back pressure chamber that runner enters the pressure reduction Proportional valve again, this moment, diaphragm backed down the valve of pressure reduction because of pressure, in order to adjust the ratio of combustion gas gas output.
During enforcement, proportional control valve comprises the indirect Small diaphragm-piece and a guide rod of a movable coil, plural groups magnet, plural number and the staggered iron core of magnet, a sealing grate flow channel indirectly, plural groups magnet and iron core are staggered to constitute and cling to array (HalbachArray) suddenly, strengthen the magnetic field of iron core, displacement is done in movable coil repulsion strength increase and reaction when making same current, displacement is also done in relative being connected with in the indirect Small diaphragm-piece of movable coil, to adjust the ratio of combustion gas.
When main draught excluder is switched on start, main valve stem is fitted to the displacement of magnetic element, and main valve stem makes the magnetic connecting rod to top offset because of the excitatory magnetic attraction that produces, make the mobile space closure between magnetic connecting rod top and the main valve plug, its below and also displacement applying of the buffer gap between the valve plug indirectly after the magnetic connecting rod displacement simultaneously, and compress the spring element between indirect valve plug and the main valve plug, then the master closes valve valve energising start and can drive main valve plug and valve plug unlatching indirectly simultaneously.At this mobile space is exactly the Valve travel of opening of indirect valve plug, and the buffer gap deducts the Valve travel of opening that mobile space then becomes main valve plug.
After main valve plug and indirect valve plug are opened simultaneously, enter the gaseous-pressure between grate flow channel and the adjustment runner, can can adjust via the adjustment runner because of the indirect size of current of proportional control valve and flow to gas quantity in the back pressure chamber, this gas quantity has also changed the high and low position of back pressure chamber diaphragm, and then change the openings of sizes of pressure differential valve and the flow that this opening is passed through in combustion gas, allow the gas flow that flows out valve body keep stable.
After main draught excluder and indirect proportional control valve energising start, when if the electric current of proportional control valve is constant indirectly, the diaphragm of pressure reduction Proportional valve and pressure differential valve can be kept in position, if the gaseous-pressure that flows into has played variation suddenly, since diaphragm and indirect Small diaphragm-piece can both moment this variation of reaction and change the strength of the size of pressure differential valve automatically with balance diaphragm two ends, reach the purpose of automatic voltage regulation.
In addition, when the electric current of indirect proportional control valve energising changes, because the difference of size of current, the electromagnetic induction size that is produced is also different, and Small diaphragm-piece presses the strength that is attached to valve opening also different indirectly, thereby causes the amount of the back pressure chamber that is back to the pressure reduction Proportional valve also different, the high and low position of the relative aforementioned pressure differential valve of diaphragm interlock is also different, if electric current increases the opening of pressure differential valve and also can increase, the gas flow that flows to the sprue outlet via pressure differential valve also can increase, and anti-is also right.
Moreover, this case is characterised in that, when power interruptions master draught excluder because of certain reason, when for example the main valve stem fault fails to close main valve plug, though the combustion gas meeting enters indirect closing valve and pressure differential valve by main valve, but the magnetic attraction that loses main valve stem because of the indirect magnetic connecting rod of draught excluder separates with main valve stem, make spring element produce elastic restoring force, and magnetic connecting rod pushing tow is moved to original position in the mobile space, allow indirect valve plug sealing adjust the suction port of runner and grate flow channel, blocking-up flows to the combustion gas of adjusting runner and grate flow channel, and makes pressure differential valve be in closed condition, reaches the danger that can prevent gas leakage.
Compared to prior art, the utility model gas electromagnetic valve can not need to be provided with in addition an independent indirect electromagnetic coil and an electromagnet, just can be when main draught excluder keeps failing to close under the unusual opening state, the multiple thrust that relies on the spring element of the loss of excitation of magnetic connecting rod and indirect draught excluder, make indirect valve plug recover closed condition, leak to prevent combustion gas.
Description of drawings
Fig. 1 is that existing gas flow control valve is regulated the gas flow illustrative view;
Fig. 2 is a generalized section of the present utility model;
Main valve plug and indirect valve plug were opened schematic representation when Fig. 3 was an adjusting gas flow of the present utility model;
Pressure differential valve was opened schematic representation when Fig. 4 was an adjusting gas flow of the present utility model;
The diaphragm position view of pressure reduction Proportional valve when Fig. 5 is an adjusting gas flow of the present utility model;
Fig. 6 be main valve plug of the present utility model under the situation of failing to close, indirectly valve plug is closed schematic representation.
Description of reference numerals: 10 valve bodies; 11 sprues; 20 main draught excluders; 21 main valve plugs; 22 main valve stems; 23 magnetic elements; 30 indirect draught excluders; 31 indirect valve plugs; 32 magnetic connecting rods; 321 mobile spaces; 322 buffer gaps; 33 spring elements; 34 grate flow channels; 35 adjust runner; 40 pressure reduction Proportional valves; 41 back pressure chambers; 42 diaphragms; 43 pressure differential valves; 50 indirect proportional control valves; 51 combustion gas ratio runners; 52 movable coils; 53 magnet; 54 iron cores; 55 indirect Small diaphragm-pieces; 56 guide rods.
Embodiment
Following foundation technological means of the present utility model lists and is suitable for embodiment of the present utility model, and cooperates graphic explanation as the back:
As shown in Figure 2, a kind of gas electromagnetic valve that is arranged in the combustion gas runner, it is that indirect draught excluder 30, a pressure reduction Proportional valve 40 and the indirect proportional control valve 50 that a main draught excluder 20, is arranged on magnetic interlock below the main draught excluder 20 is set in a valve body 10, wherein:
This main draught excluder 20 is arranged on sprue 11 inlets of valve body 10, comprise a main valve plug 21, and be arranged on the magnetic element 23 that main valve stem 22 and on the main valve plug 21 is positioned at main valve stem 22 ends, keep suitable distance between aforementioned main valve stem 22 and the magnetic element 23.
Should be arranged at main draught excluder 20 belows with indirect draught excluders 30 of main draught excluder 20 magnetic interlocks, comprise an indirect valve plug 31, be connected in magnetic connecting rod 32, between indirect valve plug 31 and the main valve plug 21 be arranged on magnetic connecting rod 32 outsides be resisted against spring element 33 between indirect valve plug 31 and the main valve plug 21, one and the grate flow channel 34 that interlinks of indirect proportional control valve 50 and a confession gas flow toward the adjustment runner 35 of pressure reduction Proportional valve 40.Wherein magnetic connecting rod 32 tops and main valve plug 21 joints remain with mobile space 321, and magnetic connecting rod 32 belows then remain with buffer gap 322 with indirect valve plug 31 joints.At this mobile space 321 is exactly the Valve travel of opening of indirect valve plug 31, and buffer gap 322 deducts the Valve travel of opening that mobile space 321 then becomes main valve plug 21.
Aforementioned pressure reduction Proportional valve 40 is arranged at the downstream part of the main valve plug 21 of valve body 10, at least include the diaphragm 42 and one and the pressure differential valve 43 of diaphragm 42 interlocks that a back pressure chamber 41, that is communicated with aforementioned adjustment runner 35 is arranged at back pressure chamber 41 tops, and rely on the high and low position of pressure differential valve 43 switchings can adjust the openings of sizes of pressure reduction Proportional valve 40, and then reach the purpose of adjusting gas flow.
Aforementioned indirect proportional control valve 50 comprises that one leads to the combustion gas ratio backflow road 51 of sprue 11 openings, aforementioned grate flow channel 34 guiding combustion gas enter the valve port of indirect proportional control valve 50,35 of aforementioned adjustment runners are subjected to indirect proportional control valve 50 for the air displacement of leading to combustion gas ratio backflow road 51, and be back to the back pressure chamber 41 of pressure reduction Proportional valve 40, in order to adjust the ratio of combustion gas gas output.
Please join shown in Figure 5 in addition, during enforcement, proportional control valve 50 comprises the indirect Small diaphragm-piece 55 and a guide rod 56 of the staggered iron core 54 of a movable coil 52, plural groups magnet 53, plural number and magnet, a sealing grate flow channel indirectly, plural groups magnet 53 is staggered to constitute with iron core 54 and clings to array (HalbachArray) suddenly, strengthen the magnetic field of iron core, displacement is done in movable coil 52 repulsion strength increases and reaction when making same current, displacement is also done in relative being connected with in the indirect Small diaphragm-piece 55 of movable coil 52, to adjust the ratio of combustion gas.
Extremely shown in Figure 5 as Fig. 3, when main draught excluder 20 is switched on starts, main valve stem 22 is fitted to 23 displacements of magnetic element, and when main valve stem 22 makes main valve stem 22 toward 23 displacements of magnetic element because of the excitatory effect of magnetic element 23 produces a magnetic attraction, drive magnetic connecting rod 32 that can be related is to top offset, make mobile space 321 closures between magnetic connecting rod 32 tops and the main valve plug 21, its below and also displacement applying of the buffer gap 322 between the valve plug 31 indirectly after magnetic connecting rod 32 displacements simultaneously, and compress the spring element 33 between indirect valve plug 31 and the main valve plug 21, then main draught excluder 20 energising starts can drive main valve plug 21 and valve plug 31 unlatchings indirectly simultaneously.
After main valve plug 21 and indirect valve plug 31 are opened simultaneously, enter the gaseous-pressure between grate flow channel 34 and the adjustment runner 35, adjustable warping flows to gas quantity in the back pressure chamber 41 by adjusting runner 35, this gas quantity has also changed the high and low position of back pressure chamber 41 diaphragms 42, and then change the openings of sizes of pressure differential valve 43 and the flow that this opening is passed through in combustion gas, allow the gas flow that flows out valve body keep an aperture of setting.
After main draught excluder 20 and the 50 energising starts of indirect proportional control valve, when if electric current is constant, then the open height of main valve plug 21 is constant, but indirect Small diaphragm-piece 53 on the proportional control valve and the diaphragm on the pressure reduction Proportional valve 42 are understood the size that regulate pressure differential valve 43 automatically according to the variation in pressure at valve body 10 inlet/outlet places indirectly, reach the purpose of automatic voltage regulation.
In addition, after main draught excluder 20 and the 50 energising starts of indirect proportional control valve, because the difference that the size of current of control valve 50 is set, the electromagnetic induction size that is produced is also different, relative indirect Small diaphragm-piece 53 presses the power that is attached to valve port also different, its institute's combustion gas that causes is via grate flow channel 34, adjusting runner 35, to be back to the flow of back pressure chamber 41 of pressure reduction Proportional valve 40 also different, thereby produce variant for the pressure of diaphragm 42, and change pressure differential valve different high and low positions is arranged, when if electric current increases the opening increase of pressure differential valve, the gas flow that enters pressure differential valve 43 via main valve plug 21 also can increase, and anti-is also right.
Moreover, as shown in Figure 6, when power interruptions master draught excluder 20, when main valve plug 21 but failed to close for some reason, the magnetic connecting rod 32 of the indirect draught excluder 30 of magnetic lost the magnetic attraction of main valve stem 22, made spring element 33 produce elastic restoring force, and magnetic connecting rod 32 pushing tows are moved to original position in the mobile space 321, allow indirect valve plug 31 seal the suction port of adjusting runners 35 and grate flow channel 34, blocking-up flowing to the combustion gas of adjusting runner 35 and grate flow channel 34, reaches the purpose that prevents that combustion gas from leaking.
More than explanation is just illustrative for the utility model; and nonrestrictive, those of ordinary skills understand, under the situation of the spirit and scope that do not break away from claim and limited; can make many modifications, variation or equivalence, but all will fall within the protection domain of the present utility model.
Claims (4)
1. gas electromagnetic valve, it is arranged in the combustion gas runner, is at a valve body upstream extremity one main draught excluder to be set, and an indirect draught excluder is set below this main draught excluder, it is characterized in that:
The main valve plug, one that described main draught excluder comprises a sealing sprue import is arranged on this main valve plug is opened and to the magnetic element of the excitatory generation magnetic attraction of described main valve stem;
Described indirect draught excluder comprises that the indirect valve plug, of adjustment runner that a sealing is positioned at the downstream and grate flow channel is subjected to aforementioned main valve stem magnetic attraction interlock and the magnetic connecting rod and of opening indirect valve plug is resisted against described indirect valve plug and makes this indirect valve plug make the spring element of time spent maintenance closed state in no external force.
2. gas electromagnetic valve according to claim 1 is characterised in that: described magnetic connecting rod top is provided with mobile space with described main valve plug joint, and described magnetic connecting rod below is provided with the buffer gap with described indirect valve plug joint.
3. gas electromagnetic valve according to claim 1, be characterised in that: described valve body downstream part is provided with a pressure reduction Proportional valve, and this pressure reduction Proportional valve includes the diaphragm and one and the pressure differential valve of this diaphragm interlock that a back pressure chamber, that is communicated with aforementioned adjustment runner is arranged at this back pressure chamber top at least.
4. gas electromagnetic valve according to claim 1, be characterised in that: the valve body downstream part is provided with an indirect proportional control valve, and this indirect proportional control valve comprises the indirect Small diaphragm-piece and a guide rod of a movable coil, plural groups magnet, a plurality of and staggered iron core of magnet, the aforementioned grate flow channel of a sealing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205549582U CN201787136U (en) | 2010-09-29 | 2010-09-29 | Gas solenoid valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205549582U CN201787136U (en) | 2010-09-29 | 2010-09-29 | Gas solenoid valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201787136U true CN201787136U (en) | 2011-04-06 |
Family
ID=43819099
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205549582U Expired - Fee Related CN201787136U (en) | 2010-09-29 | 2010-09-29 | Gas solenoid valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201787136U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105402766A (en) * | 2014-09-10 | 2016-03-16 | 关隆股份有限公司 | Gas valve control method for gas appliance |
| CN109114225A (en) * | 2018-08-22 | 2019-01-01 | 杭州强邦精密机械电器有限公司 | Double pressure control proportioning valves and control method |
| CN109958804A (en) * | 2017-12-26 | 2019-07-02 | 宁波方太厨具有限公司 | A kind of ratio pressure maintaining valve |
-
2010
- 2010-09-29 CN CN2010205549582U patent/CN201787136U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105402766A (en) * | 2014-09-10 | 2016-03-16 | 关隆股份有限公司 | Gas valve control method for gas appliance |
| CN105402766B (en) * | 2014-09-10 | 2018-09-11 | 关隆股份有限公司 | Gas valve control method for gas |
| CN109958804A (en) * | 2017-12-26 | 2019-07-02 | 宁波方太厨具有限公司 | A kind of ratio pressure maintaining valve |
| CN109958804B (en) * | 2017-12-26 | 2024-01-16 | 宁波方太厨具有限公司 | Proportional pressure stabilizing valve |
| CN109114225A (en) * | 2018-08-22 | 2019-01-01 | 杭州强邦精密机械电器有限公司 | Double pressure control proportioning valves and control method |
| CN109114225B (en) * | 2018-08-22 | 2019-10-29 | 杭州强邦精密机械电器有限公司 | Double pressure control proportioning valves and control method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110406 Termination date: 20160929 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |